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On January 1, 1947 - The town of Shibata became a city.
On March 1955 - After it gained city status, Shibata absorbed the villages of Izumino (Ijimino or Ijikuni), Kawahigashi, Sugaya (Sugatani), Matsuura, Yonekura and Akatani (Agaya).
On March 1956 - Some areas of the village of Kajikawa were absorbed into Shibata.
On April 1959 - The village of Sasaki was absorbed into Shibata.
On November 1, 1970 - The town of Toyosaka (part of Niigata as of March 21, 2005) gained city status.
^住民基本台帳人口移動報告年報 [Annual Report on Population Movement in the Basic Resident Register] (in Japanese). 総務庁統計局. 2005. p. 139. Shiunji-machi and Kajikawa-mura were incorporated into Shibata-shi as of May 1, 2005.